Machine for reducing wood or other material.



HATHNTHII' IUNH '21, 1904.

I. 1H. NASH. MACHINE HDR HHDUGIHG Woon 0H oIHHH MHIHHIAL.

APPLICATION FILED AUG. 21,' .1903., y

' 9 SHEETS-SHEET I.

N0 MODEL.

No. 763,315. PATENTE'D JUNE 21, 1904.

J. M. NASE. MACHINE EOE EEDUGING Woon 0E OTHER MATERIAL.

APPLICATIONPILED AUG. Z1, 1903.-

,ANo MODEL` 9 sEETssHEET 2,.

PATBNTEDJUNB 21, 1904.

- JQM. NASH. .MACHINE P011. REDUGING Woon 011 OTHER MATERIAL.

APPLICATION FILED AUG. 21, 1903.

9 SHEETS-SHEET 3.

N0 MODEL.

No. 763,315. I PATENTED JUNE 21,41904. J. M. NASH.

' MACHIN FOR REDUCING WOOD 0R OTHER MATERIAL.

AP'PLIGATION FILED AUG. 21, 1903.

No MODEL. -Qsmn'rss-sH-EBT 4. A

9M Q -i- `fili@- R i D" I I i R .n j k A l. E ,1l *w Hw 4 E E 1 e i l (ggg/weg No. 763,315. PATENTED JUNE 21, 1904l J. M. NASH.

MACHINE EOE REDUOING WOOD OR OTHER MATERIAL.

APPLICATION FILED AUG. 21, 1903. NO MODEL. 9 SHEETS-SHEET 5.

. v KO 9.a Weg/gif,

No. 763,315. PATENTED JUNI] 2l, 1'904.y

J. M. NASH. MACHINE FOR REDUOING WOOD OR OTHER MATERIAL.

APPLICATION FILED AUG. 21, 1903. N0 MODEL. 9 SHEETS-SHET 6.

PATENTED JUNE 21, 1904-.

J. M. NASH.

MACHINE FOR REDUGING WOOD OP. OTHER MATERIAL.

APPLIGATION FILED AUG. 21. 1903.-

9 SHEETS-SHEET '1.

N0 MODEL.

lPATENTND JUNE 21, 190A.

' J. M. NASH.

MACHINE. PoR RBDUGING Woon 0R OTHER MATERIAL.

APPLICATION FILED AUG. 21, 1903.

9 SHEETS-SHEET 8.

35m/am@ @Q4/Waas@ o 1 No. 763,315. PATENTED JUNE 21, 1904.

J. M. NASH.

MACHINE POR REDUOING WOOD OE OTHER MATERIAL.

v APPLICATION IILLL AUG. 21. 1903. No MODEL. s SHEETS-SHEET a.

KJV.

UNiTn-.n Stains Patented .Tune 21, 1904.

arent JOHN M. NASH, QF MlLXfVAUKEE, VtriSC-ONSlN.

SPECIFICATION forming part of Letters Patent No. 763,315, dated June 21, 1904.

i i Application ma .iugm 21, 190s. ssaniio.v17o.2e1. (no man To aU 11i/1.0711. if. 71mg/ concern:

Bc it known that I, JOHN M. NASH, a citizen of the United States, and a resident ot' Milwaukee, in the county of Milwaukee and State of VViscons'in, have invented certain new and useful Improvements'in Machines for Reducing W`ood or otherMaterial; and .I do hereby declare that the `following is a full, clear, and exactdescription thereof. l

My invention consists in what' is hereinafter particularly set forth with reference to the accompanying drawings and subsequently claimed, its object being economicai rapid reduction of a succession of pieces of various material b y-'ab1asio1i` or otherwise, the machine herein shown and specifically described being designed for'smoothing round woodwork, especially such as has irregularity of configuration, provision being had for operating with abrading material in depressions and upon elevations of the Work ata uniform pressure, so as not to mar its outline.l

Figure 1 of the drawings represents a vertical transverse section of the machine and is indicated by line l 1 in the third figure; Fig. 2, an elevation of the drive end ofthe machine, parts being broken and'in section; Fig. 3, aplan View of the machine, partly in horizontal section; Fig. 4, a vertical longitudinal sectional View of' th e machin e, indica-ted by linel 4 4 in theithird ligure; Fig. 5, a partly-seetional'view of a portion of the machine, indicated by line 5 5 in the sixth gure; Fig. 6, a similar view indicated by line 6 6 in the third and tifth figures; Fig. 7, an elevation, partly in section, of a rear portion of the machine; Fig. 8, a vertical transverse section of the machine, indicated byline 8 8 in the third ligure; Fig. 9, a partly-sectional view illustrating a portion of a pair of rotatory circular holders in'the machine andone oi' a series of intermittently-reciproeati've spindles guided in the holders; Fig. 10, a detail partly-sectional view indicated-byline 1f) l() in the ninth ligure; Fig. 11, a perspective View of one oi' the brush-holders in the machine; Fig. 12, a similar view of a portion of one of a plurality ot' channel-bars with which brush-holders are connected in series, and Fig. 13 a illustratin regularly-congured material in contact with a cushioned strip of iicxible abrading material.

Referring by letter to the drawings, A inon said bed and the mechanism for acilitat-i ing adjustment of the aforesaid taiistock are immaterial to the carrying out of my invention. Hence these features oi the machine are susceptibleo indefinite variation.

ne detail of the bed, head-stock,

Bolted or otherwise 'fastened to the. ldwer outer end of the head-stock is a bracket D,

and loose on la stud made fast inthe bracket,

isa bevel gear-wheel c, to the hub of which a driving-pulley E is rigidlyv secured. -A

Worm-shaft F has its bearings in arms of the bracket D, and a bevel said sha-ft, ismeshed With the one,`c, aforesaid. Aspur-pinion e, fast on the worm-shaft, meshes with a spur-Wheel f, that is fast onacountershaft G,.that also has its bearings-in arms of gear-Wheel-d, fast en the bracket'D and is in crank connection with a link-bai' H, coupled to a slide I, that yreciprocates on a guide '-bracket, to which further reference is hereinafter made. The worm g of the shaft F meshes with a Worm- Wheel J, that is fast on a main shaft K, ar-

ranged to turn in a sleeve L, loose in the headstock B, and a drivmg-puiley M 1s fast on. In'sphne connection wlth the" said sleeve. shaft K is another sleeve, N, for which the tail-stock C is provided witha bearing. l

Keyed on the sleeve L is aspur-wheel 0,4m.

mesh with pinions L, fast on live-spindles P, that have their bearings at regular intervals of a circle in a head (.2, that is fast on the shaft K and concentric with the same. A housing R is preferably employed in connection with the .head-stock to cover the Aspurgear connecting the sleeve L and live-spindles.

The head or carrier QL vis provided with a peripheral depression the spindics P, iii of the coilars said depression being such as to prercnt longitudinal play ot' said spindles in their bearings.

A pair of circular holders S S are spaced apart and made fast on the sleeve N, that is splined on the shaft K to be adjustable with the tail-stock C, and said holders are pro- 4vided with guides for dead-spindles T, alined with the ones, l?, aforesaid. The sleeveN and holders S S are hereinafter collectively designated asa carrier. A spiral springjof suitable power is arranged on each ot' the spindles T, between a collar 1 ot' same and the holder S, buhng-washers vn of suitable material being preferably employed between the holder S and the spindle-collars to prevent noise that would otherwise result in the operation ofthe machine. Extending from each or' the spindlcs T, at a right angle to the same, is a stud n, engaging a longitudinal slot in the spindlebearing with which the holder S is provided, and an antifriction-roller p is carried by the stud outside of said bearing, said stud and roller being collectively awiper.

Front brackets A C are respectively bolted -to the bed A and tail-stock C, and likewise connected to the bracket C is the shank of a cam U in the path ol the antifrictionrollers p, that are carried by the studs a of the dead-spindles T, above specified.

Engaged by the shaft K and sleeve N, respectively, are two bars V V, bolted to the brackets A and C', respectively, and each provided With an outwardly-extending lug r, arranged to vbe in the path of the depending offset end of an otherwise vertical dog W, pivotally connected to a double right-angle arm X, the arms being loose on said shaft and sleeve, respectively. The bars V V and arms X X arel held in proper position by means of set-collars s on the shaft K, and bolted to each arm is the Alongitudinally-slotted horizontal shank of a vertical sleeve Y, in which the ta g u of a Work-supporting fork Z is adjustabllv held with respect to normal elevation by means of a set-screw u', and as the setbolt o for the sleeve-shank engages ythe slot in said shanlr the fork aforesaid is capable of horizontal as well as vertical adjustment for the purpose of properly centering work fed to the machine. An upper lug of each of the dogs W is connected by a spiral spring w to a lug of the adjacent arm K, and said dog is normally'held by said spring in contact with a stop-lng not said arm. The overhanging upper ends of the dogs W are in the paths of fingersfy, with which the head Q and holder S are provided., each of the lingers being parallel to one of the spindles.

Shown in pivotal connection with the bars V are hoolr-lilre buffers' D for work that is automatically released from live and dead spindles, and an apron E in connection with 'the tail-stoel; is arranged to guide the work deflected ,by the bufrers dlear of the machine.

Outward play of the buffers is limited byl to the aforesaid standards.

stop-lugs .2, projecting laterally from the arms A V, and inward swing of said buffers is limited by contact of lugs e of same with collars on' the main shaft.

The guide-bracket F for the rcciprocative slide I is bolted to the rear of the bed A, and a pair of parallel -cuived standards G are bolted on said slide. Supported in rear ears 5 ofthe standards are rods c', each of which serves las an arbor for a series of spools ot' flexible abrading material H', such as sandpaper or its equivalent, the same for some work being preferably of the species disclosed in my Patent N o. 725,761,0f April 21,1903,and said spools are held against other than rotatory movement by spacers d on said rods adjacent to said standards. Other rods, e', in pairs are supported in the standards G and serve as arbors for loose rollers f', on which the strips of abrading material from 'the spools are trained, these rollers being employed in the arrangement shown to obtain a friction on said abrading material.

Journaled in the standards G are pairs oi Jfeed-rolls I, adjacent t0 the friction-rollers f, arranged in series of pairs on the rods e', and the strips of abrading material are trained on said feed-rolls',- thefree ends of said strips being backed by brushes J of suitable matcrial. The` brush heads are blocks having sliding it in angular inwardly-flanged holders K', that are provided with apertured ears g, engaged by pivot-rods L', supported in channel-bars L', that are bolted at theirv ends The pivot-rods for the brush-holders are at intervals of a circle concentric with the shaft K, and an ear 1l of each brush-holder is opposed by an adjustable stop in the form of a set-screw j', that engages the adjacent'channel-bar, a set-nut k being preferably employed on said screw. By means of the adjustable stops the holders K can be independently set to regulate the angle of the corresponding brushes and stri ps of abrading material arranged in the path of successive pieces of work that are centered in IIO the machine to be traveled on a circle simulf taneous with revolution at high speed on their own axes. It is intended that the abrading material shall be of different degrees of {ineness in descending order, the coarsest being journals is a sprocket-wheel N for a linkbelt a work to which it is opposed.

P', that is also engaged by another sprocketv/heel, Q', loose on a stud of a slotted bracket R', heldin adjusted position on one of the standards G' by means of a set-bolt m' to regu- 5 late tension of said belt. The roll-journal, carrying' one of the sprocket-wheels N', is also provided with a ratchet-wheel T', fast there'- on and which may be an integral part of said ratchet-wheel, as is herein shown. Engaging IO the ratchet-Wheel T' is a pawl U' in pivotal connection with a rocker V', that is loose onv the roll journal that carries said ratchetwheel, and this rocker is in the pathv of a striker W', bolted to the rotatory head Q of I5 the machine. The set of the rocker with reference to varying the throw of the pawl therewith is determined by adjustment of a longitudinally-slotted supporting-stop X', held on one of the standards G' by a set-boltengaging its slot.

The machine having been properly adjusted, the pieces of work to be operated upon are laid one after another in the forks Z, that are intermittently lifted on arcs of circles having the same radius and line of center as those on which the spindles P T are spaced, the lifting speed of said forks being the same as the rotatory speed of the shaft K, on which the armsX are centered. The lifting operation is due to contact of alined fingers 1/ of the head Q and holder S, with overhanging ends of the dogs JV pivoted to said arms, and by subsequent contact of said dog's with lugs r of the stationary arms V they are tripped to clear said fingers, the result being an automatic return of the work supports or forks Z to normal position. In the meantime the antifriction-roller p, carried by a previously-retracted springcontrolled dead-spindle T; clears the retract- 40 ing-cam U, and as a result of this operation there is automatic accurate centering of the work supported by the -then lifting forks aforesaid, it being understood that the lifting of the successive pieces of Work fed to the machine compensates for variations in the time of release of the spring-controlled deadspindles T one after another from retracted position. Each piece of Work, rotating' on its axis at high speed, is traveled by the rotatory v spindle-carriers to have contact with the flexible abrading material arranged in series of strips at different elevations against yielding backing, and said worklis subsequently released by an automatic retraction of its springcontrolled dead-spindle, due to the cam U in.

the path of the antifriction-roller carried by said spindle. The slidel being reci procative, all of the'abrading material is vibrated on the From the foregoing it will be understood that there is unir formity of pressure of the work on all the ,abrading material in its path, and on the release of said Work tangent Hight of the same is checked by the yielding' buffers D', that de- 6 5. fleet it onto the apron E', from which it discharges clear of the machine. At each revolution of the head Q the striker W' therewith operates the rocker V', the result being a throw of the pawl U' to actuate the ratchetwheel T' and impart motion to the link belt and sprocket-gear, the result being a predetermined amount of feed of the abrading material from its spools. By employing other strikers on the head Q at suitable intervals apart the feed of the abrading material may be more frequent. y

While the machine herein shown and described is organized for the reduction of a succession of pieces of woodwork by abrasion, it is within the scope of my invention to substitute-other reducers for the abrading material and to employ said machine for reducing material other than wood. I

Having thus described my invention, what I claim asnew, and desire to secure by Letters Patent, is-'- 1. A machine comprising means for centerin g asuccession of pieces of material and traveling the same on a circle simultaneous with rotation of 'cach piece on its own axis, reducers arranged in the path of the material, means for releasing each piece of the reduced material, and. deilecting-buffers opposed to tangent flight of said reduced material when released.

2. A machine comprising means for centering a succession of pieces of material and traveling the same on a circle simultaneous with rotation ofeach piece on its own axis, reducers arranged in the path of the material, means for releasing the reduced material, and yielding buffers opposed tov tangent Hight of said reduced material when released.l y

3. A machine comprising means for centering1 a succession of pieces of material and traveling the same -on a circle simultaneous with a rotation of each piece on its ownaxls, vlbratory reducers arranged in the path of vthe materiahand means for releasing the reduced material. v

4. A machine comprisingmeans for centering a succession of pieces of material and traveling the same on a circle simultaneous with arotation of each piece on its own axis, worksupports having intermittent lift coincident with centering operations, reducers arranged in the path of the material, and means for releasing each piece ofthe reduced material.

5. A machine comprising rotatory carriers, intermittently-lifting work-supports having the same axis as lthe carriers, means for centering successive pieces of work in connection with said carriers coincident with lifting operations of said supports, means for rotating each piece of work on its own axis, reducersar-ranged in the path of the work, 'and means for releasing each piece of reduced-work sub;- sequent to a reducing operation thereon.

6. A machine comprising meansfor ycentering a succession of` pieces of work and travel- IOO IIO

, ing the same on a circle simultaneous with a rotation of each piece on its own axis, flexible .abrading material arranged in the path of the work, yielding backing for the abrading material, means for feeding saidl abrading material and means for releasing eachpiece of the work subsequent to an abrading operation thereon.

8. A machine comprising means for centering a succession of pieces of work and traveling the same on a circle simultaneous with a rotation of. each p'iece on itsr 'wn axis, a vibrating carrier, abrading material with the carrier in the path of the work, yielding backing for the abrading material, and means for releasing'each piece of the work subsequent to an abrading operation thereon.

9. A machine comprising means for centering a succession of pieces of work and traveling the same on a circle simultaneous with a rotation of each piece on its own axis, liexible abrading material having automatic intermittent feed and arranged to be in the path of the work, yielding backing-for the abrading niaterial, and means for releasing each piece of the work subsequent to an abrading operation thereon.

10. A machine comprising means for centering a succession of pieces of work and traveling the same on a circle simultaneous with a rotation of each piece on its own axis, iexible abrading material arranged to be in the path of said work at different elevations, yielding backing for the abrading material, and means for releasing each piece of the work subsequent to an labrading operation thereon.

11. A machine comprising means for centering a succession of pieces of work and traveling the same on a circle simultaneous with a rotation of each piece on,its own axis, {iexible abrading material arranged in the path of the work, pivotally hung brushes constituting backing for the abrading material, means for holding strips of the abrading material and their backing-brushes out of working position, and means for releasing each piece of the work subsequent to an abrading operation thereon.

12. A machine comprising means for centering a succession of pieces of work and traveling the same on a circle simultaneous with a rotation of each piece on its own axis, iiexble abrading material having feed from spools for which a vibratory carrier is provided, said material being in the path of the work, yielding backing for the abrading material, and means for releasing each piece of the work .subsequent to an abrading operationl thereon.

vessie 13. A machine comprising means for centering a succession ofj pieces of work and traveling the sanie on a circle simultaneous with a rotation of each lpiece on its own axis, flexible Y abrading material supported at different elevations,frictionrollers and feed-rolls on which the material is trained to be in the path ofthe work, brushes supported back of the free ends of the abrading material, mechanism for imparting motion to the feed-rolls, and means for releasing each piecey of work subsequent to an abrading operation thereon.

' 14. A machine comprising means for centering a succession of pieces of work and traveling the same on a circle simultaneous with a rotation of each piece on its own axis, a rcciprocative carrier, liexible abrading material supported by the carrier at diii'erent elevations, friction-rollers and feed-rolls on which the abrading material is trained to be in the path ol the work, brushes supported back of the free ends of the abrading material, mechanism for imparting rotary motion tothe feedrolls, and means for releasing each piece of the work subsequent to an abrading operation thereon.

15. A machine comprisingmeans for centering a succession of pieces of work and traveling the same on a circle simultaneouswith a rotation of each piece on its own axis, a reciprocative slide, standards supported on the slide, channel-bars connecting the standards at different elevations, liexible abrading material supported between the standards at elevations corresponding to that of the channelbars, 'friction-rollersand feed-rolls on which 'the abrading material is trained to Abe in the path of the work, brushes in pivotally-adjustable connection with each channel-bar back of the free ends of adjacent abrading material, mechanism for imparting rotary motion to the feed-rolls, and means for releasing each piece of the work subsequent to an abrading operation thereon.

- 16. A machine comprising means for centering av succession of pieces 'of work and traveling the same on a circle simultaneous with a rotation of each piece on its' own axis, a bracket extending from the machine-bed, a reciprocative carrier guided on the brackets, iicxible abrading material supported by the carrier at different elevations, friction-rollers and feedrolls on which the abrading material is trained to be in the path of the work, brushes supported back of the free ends of the abrading material. mechanism for imparting rotary motion to the feed-rolls, and means for releasing each piece of the work, subsequent to an abrading operation thereon.

17. A mach inc comprisinga bed, head-stock and tail-stock; sleeves having their bearings in the head and tail stocks, a shaft loose in the head-stock sleeve but having the tail,.- stock sleeve rotativetherewith, means for imparting independent rotatorymotion to the shaft and lOO IOS

vea-S 5 head-stock sleeve, spindle-carriers fastonthe zla connten-shaft spur-'geared to the wermshaft, shaft and ltail-stock sl ev'e',planet planet-gear connecting the head-stock, sleeve` meeting the head-stock sleeve and spindlesin and\spindles in the carrier on the main shaft, v the carrieron the haft,these spi'ndlesbeing `these spindles being stationaryina longtu 5 4stationary in a longitudinal directienjand the rdinal direetionand the spindles in the oppo- 60 spindles Vin the-,opposite carrier alined,tlfxerefl site carrier alined therewith longitudinallywith-longitudinally movable againstrspring movable-against spring resistance, meanslfor' resistanee,rmeansfor 'automatic temporary'reautomatic temporary retractionofthe-longb traction of the longitudinally-movable spintudinally-movable spindles in successive- -oxf-.I 1 O` dles' in lsuccessive order, supports for work to derfsuppgrts for work to be centered betweer`f6-5 be centered between spindles,` and reducers spindles,a carrier having reeiprocativ'e conarranged in the path of the work. t neetion with the-COunter-shaft, and' lredueer's; A 18. A machine eomprsngabed,head-stock in eennectionl with the reeiproeative carrierin and tail-stock; sleeves having their bearings in thefpath of lthe work. I5 the head and tail stocks, ashaft Iloose'in the 21. A machine comprising-opposite--rota- .70,

. head-stock sleeve but having the tail-stock tory carriers, live and dead spindles in the sleeve rotative therewith, means for imparting carriers, the dead-spindles being springeeonindependent rotatory motion to the shaft and trolled and automatically retractive fora/time head-stoek'sleeve, spindle-carriers fast onthe in successive order, automatically-lifting supshaft and tail-stock sleeve,`l planetgear eonports vfor lw/rlr to be .centered between live and 7 5 'neeting the head-stock sleeve and spindles'in dead spindles, and redueers arranged in the the carrier on the shaft, these spindles being path of' the work. stationary in a longitudinal'direction and the 22. A machine comprising opposite rota-f Y spindles in the opposite-carrier alined theretory'carriers', "liveand -dead spindles .in the 2'5 with longitudinally movable against spring carriers, th fdeadispindles being spring-coh- ,30. resistance, means f or automatic temporary reV trolled and :automatically retraetive'Or a time traction of the .longitudinally-movable spin'.- in sueeessiveorder, liftingarms provide'dwith dles insueeessive order, supports for work to spring-controlled pivotal do s',"inge rs onthe be centeredl betweenl spindles, and vibratory carriers paralleltothe spind es therewith and reducers arranged inthe pathof the. work. arranged to have Contact with the dogs, v.sta- 85 v 19. Amaehine,eomprisingabed,head-stock, tion'ary deg-trippers, worksuppo'rtsin'con-I andtail-stoe-lr; sleeves having their bearings in neetion` with the arms, 'and reduee'rsarranged lthe head andtail stockaa main shaft loose in inthe 'path of the work centered betweenlive the head-stock sleeve but having the tail-stock and dead spindles',

5' 'sleeve-rotative therewith, an'independently- 23. A machine comprising means'for cen- '9o driven vshaft in worm-gear with themain shaft, ltering and revolving work on. its own axis, adriving-pulley fast on the head-stock sleeve,- abrading material, -a 'yielding .backingfor the spindlearriers fast on 'the main shaft and same', and means whereby vibratorycontact tail-steek sleeve, planet-gear connecting the is had between the revolving work and'abrad'- ,49 head-'stock sleeve and spindles 'm the carrier ing material.` 95

on the `main shaft, .these spindles being sta- 24,. A-maehinje" eomprising'means for. cen l tionary in alongitudinal direction and the opl tering 'and revolving wofrk on its own axis, a positespindles alined therewith longitudinally vibratory carrier, abradig'rnaterial with the movable againstspring resistance, means for carrier opposing the revolving work to have .451" automatic temperaryretraetion ofthe longicontact therewith, and 'a yielding backing for IO tudinallyjmovable spindles in successive or. the abradigmaterial. j v der, supports or'the worktobe centered beyIn testimony that claim theforegoing tweenzspindlegand redueers in the path of the have hereunto set myhand, .at Milwaukee, in work;- Y the county of Milwaukee andSt'ate of W'iseono geg.nmaellincompisinga geringem-stock sin.in the presence of 'two witnesses.

an 'tai -stoe ,s eeves avingt eir earingsin u l the head-aaa an stocks, t1-main shaft loose in' JOHN M NASH the head-stock sleevl but having the tail-stock Witnesses: sleeve rotative therewith, an independently- N.E. OL11 HNT, driven shaft inworm-gear withthemain shaft, v 

